• 2322 Citations
  • 23 h-Index
19962019

Research output per year

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Research Output

  • 2322 Citations
  • 23 h-Index
  • 31 Conference contribution
  • 30 Article
  • 7 Paper
  • 7 Conference article
2019

Enhancement of solid fuel combustion in a hybridrocketmotor usingamorphous ti-al-b nanopowder additives

Connell, T. L., Yetter, R. A., Risha, G. A., Huba, Z. J., Epshteyn, A. & Fisher, B. T., Jan 1 2019, In : Journal of Propulsion and Power. 35, 3, p. 662-665 4 p.

Research output: Contribution to journalArticle

1 Scopus citations

Evaluation of orifice inlet geometries on single liquid injectors through cold-flow experiments

Kiaoulias, D. N., Travis, T. A., Moore, J. D. & Risha, G. A., May 1 2019, In : Experimental Thermal and Fluid Science. 103, p. 78-88 11 p.

Research output: Contribution to journalArticle

1 Scopus citations

Priming event peak pressures in liquid propulsion systems

Moore, J. D., Gilbert, J., Brindle, B. & Risha, G. A., Jan 1 2019, In : Journal of Spacecraft and Rockets. 56, 3, p. 899-909 11 p.

Research output: Contribution to journalArticle

1 Scopus citations
2018

Hypergolic ignition of hydrogen peroxide/gel fuel impinging jets

Connell, T. L., Risha, G. A., Yetter, R. A. & Natan, B., Jan 2018, In : Journal of Propulsion and Power. 34, 1, p. 182-188 7 p.

Research output: Contribution to journalArticle

4 Scopus citations

Ignition of hydrogen peroxide with gel hydrocarbon fuels

Connell, T. L., Risha, G. A., Yetter, R. A. & Natan, B., Jan 2018, In : Journal of Propulsion and Power. 34, 1, p. 170-181 12 p.

Research output: Contribution to journalArticle

7 Scopus citations

Investigation of gel hydrocarbon fuels and hydrogen peroxide as a hypergolic bipropellant

Connell, T. L., Risha, G. A., Yetter, R. A. & Natan, B., Jan 1 2018, In : International Journal of Energetic Materials and Chemical Propulsion. 17, 1, p. 57-73 17 p.

Research output: Contribution to journalArticle

2017

Propulsion education at the Pennsylvania State University

Boyer, J. E., Yetter, R. A., Risha, G. A. & Maicke, B. A., Jan 1 2017, 53rd AIAA/SAE/ASEE Joint Propulsion Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, (53rd AIAA/SAE/ASEE Joint Propulsion Conference, 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations
2016

Effects of water hammer on propulsion systems

Brindle, B., Gilbert, J., Moore, J. D. & Risha, G. A., Jan 1 2016, 52nd AIAA/SAE/ASEE Joint Propulsion Conference, 2016. American Institute of Aeronautics and Astronautics Inc, AIAA, (52nd AIAA/SAE/ASEE Joint Propulsion Conference, 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Near-surface flame structure characterization of simplified ammonium perchlorate/hydroxyl-terminated polybutadiene compositions

Isert, S., Connell, T. L., Risha, G. A., Hedman, T. D., Lucht, R. P., Yetter, R. A. & Son, S. F., Feb 1 2016, In : Combustion and Flame. 164, p. 201-211 11 p.

Research output: Contribution to journalArticle

10 Scopus citations
2015

Boron and polytetrafluoroethylene as a fuel composition for hybrid rocket applications

Connell, T. L., Risha, G. A., Yetter, R. A., Roberts, C. W. & Young, G., Jan 1 2015, In : Journal of Propulsion and Power. 31, 1, p. 373-385 13 p.

Research output: Contribution to journalArticle

11 Scopus citations

Impinging jet ignition studies of hydrogen peroxide with gelled fuel rendered hypergolic by addition of reactive particles

Connell, T. L., Risha, G. A., Yetter, R. A. & Natan, B., Jan 1 2015, 51st AIAA/SAE/ASEE Joint Propulsion Conference. American Institute of Aeronautics and Astronautics Inc, AIAA

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Thermal and electrolytic decomposition and ignition of han-water solutions

Khare, P., Yang, V., Meng, H., Risha, G. A. & Yetter, R. A., Jul 3 2015, In : Combustion science and technology. 187, 7, p. 1065-1078 14 p.

Research output: Contribution to journalArticle

8 Scopus citations
2014

Combustion of frozen nanoaluminum and water mixtures

Risha, G. A., Connell, T. L., Yetter, R. A., Sundaram, D. S. & Yang, V., Jan 1 2014, In : Journal of Propulsion and Power. 30, 1, p. 133-142 10 p.

Research output: Contribution to journalArticle

23 Scopus citations

Effect of fuel type on hypergolic ignition of hydrogen peroxide with gelled hydrocarbon fuel

Connell, Jr., T. L., Risha, G. A., Yetter, R. A. & Natan, B., Jan 1 2014, 50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2014. American Institute of Aeronautics and Astronautics Inc., (50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Evidence of a kinetic isotope effect in nanoaluminum and water combustion

Tappan, B. C., Dirmyer, M. R. & Risha, G. A., Aug 25 2014, In : Angewandte Chemie - International Edition. 53, 35, p. 9218-9221 4 p.

Research output: Contribution to journalArticle

15 Scopus citations
2013

Combustion of boron and fluorocarbon solid fuels in a hybrid rocket

Connell, T. L., Risha, G. A., Yetter, R. A., Roberts, C. W. & Young, G., Sep 16 2013, 49th AIAA/ASME/SAE/ASEE Joint PropulsionConference. (49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Combustion of boron and fluorocarbon solid fuels in a hybrid rocket

Connell, T. L., Risha, G. A., Yetter, R. A., Roberts, C. W. & Young, G., Jan 1 2013, 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference. American Institute of Aeronautics and Astronautics Inc., (49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference; vol. 1 PartF).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Design, fabrication, and ground test of a hydrocarbon rocket engine

Sell, J. L., Bittner, D. E., Koeck, J. J. & Risha, G. A., Sep 16 2013, 49th AIAA/ASME/SAE/ASEE Joint PropulsionConference. (49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Design, fabrication, and ground test of a hydrocarbon rocket engine

Sell, J. L., Bittner, D. E., Koeck, J. J. & Risha, G. A., Jan 1 2013, 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference. American Institute of Aeronautics and Astronautics Inc., p. 1-10 10 p. (49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference; vol. 1 PartF).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Effect of jet momentum ratio and equivalence ratio on the ignition process of tmeda and white fuming nitric acid (Wfna)

Bittner, D. E., Sell, J. L. & Risha, G. A., Jan 1 2013, 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference. American Institute of Aeronautics and Astronautics Inc., (49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference; vol. 1 PartF).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Effect of jet momentum ratio and equivalence ratio on the ignition process of TMEDA and white fuming nitric acid (WFNA)

Bittner, D. E., Sell, J. L. & Risha, G. A., Sep 16 2013, 49th AIAA/ASME/SAE/ASEE Joint PropulsionConference. (49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Effects of particle size and pressure on combustion of nano-aluminum particles and liquid water

Sundaram, D. S., Yang, V., Huang, Y., Risha, G. A. & Yetter, R. A., Oct 1 2013, In : Combustion and Flame. 160, 10, p. 2251-2259 9 p.

Research output: Contribution to journalArticle

26 Scopus citations

Flame propagation of nano/micron-sized aluminum particles and ice (ALICE) mixtures

Sundaram, D. S., Yang, V., Connell, T. L., Risha, G. A. & Yetter, R. A., Jan 11 2013, In : Proceedings of the Combustion Institute. 34, 2, p. 2221-2228 8 p.

Research output: Contribution to journalArticle

28 Scopus citations
2012

Combustion of bimodal aluminum particles and ice mixtures

Connell, T. L., Risha, G. A., Yetter, R. A., Yang, V. & Son, S. F., Dec 1 2012, In : International Journal of Energetic Materials and Chemical Propulsion. 11, 3, p. 259-273 15 p.

Research output: Contribution to journalArticle

12 Scopus citations

Combustion of PTFE-Boron compositions for propulsion applications

Young, G., Stoltz, C. A., Mason, B. P., Joshi, V. S., Johansson, R. H., Connell, Jr., T. L., Risha, G. A. & Yetter, R. A., Dec 1 2012, In : International Journal of Energetic Materials and Chemical Propulsion. 11, 5, p. 451-471 21 p.

Research output: Contribution to journalArticle

8 Scopus citations

Influence of an electric field on the burning behavior of solid fuels and propellants

Young, G., Koeck, J. J., Conlin, N. T., Sell, J. L. & Risha, G. A., Feb 1 2012, In : Propellants, Explosives, Pyrotechnics. 37, 1, p. 122-130 9 p.

Research output: Contribution to journalArticle

7 Scopus citations
5 Scopus citations
2011

Combustion of alane and aluminum with water for hydrogen and thermal energy generation

Connell, Jr., T. L., Risha, G. A., Yetter, R. A., Young, G., Sundaram, D. S. & Yang, V., Feb 3 2011, In : Proceedings of the Combustion Institute. 33, 2, p. 1957-1965 9 p.

Research output: Contribution to journalArticle

38 Scopus citations

Regression rates of solid fuels containing High Nitrogen (HiN) materials

Risha, G. A., Miller, A. G., Glass, R. A., Yeager, V. A., Chiaverni, M. J. & Tappan, B. C., Dec 1 2011, 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011. (47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations
2010

Combustion of alane-based solid fuels

Young, G., Risha, G. A., Miller, A. G., Glass, R. A., Connell, Jr., T. L. & Yetter, R. A., Dec 1 2010, In : International Journal of Energetic Materials and Chemical Propulsion. 9, 3, p. 249-266 18 p.

Research output: Contribution to journalArticle

21 Scopus citations
2009

Aluminum-Ice (ALICE) propellants for hydrogen generation and propulsion

Risha, G. A., Connell, T. L., Yetter, R. A., Yang, V., Wood, T. D., Pfeil, M. A., Pourpoint, T. L. & Son, S. F., Dec 1 2009, 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. (45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Scopus citations

Decomposition and ignition of HAN-based monopropellants by electrolysis

Meng, H., Khare, P., Risha, G. A., Yetter, R. A. & Yang, V., Dec 1 2009, 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. 2009-0451. (47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Scopus citations

Effect of nano-aluminum and fumed silica particles on deflagration and detonation of Nitromethane

Sabourin, J. L., Yetter, R. A., Asay, B. W., Lloyd, J. M., Sanders, V. E., Risha, G. A. & Son, S. F., Oct 1 2009, In : Propellants, Explosives, Pyrotechnics. 34, 5, p. 385-393 9 p.

Research output: Contribution to journalArticle

67 Scopus citations

Effect of particle size on combustion of aluminum particle dust in air

Huang, Y., Risha, G. A., Yang, V. & Yetter, R. A., Jan 1 2009, In : Combustion and Flame. 156, 1, p. 5-13 9 p.

Research output: Contribution to journalArticle

216 Scopus citations

Experiment and semi-empirical modeling of lab-scale hybrid rocket performance

Connell, T. L., Santi, S. A., Risha, G. A., Muller, B. A. & Batzel, T. D., Dec 1 2009, 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. (45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Scopus citations

Feasibility study and demonstration of an aluminum and ice solid propellant

Wood, T. D., Pfeil, M. A., Pourpoint, T. L., Tsohas, J., Son, S. F., Connell, Jr., T. L., Risha, G. A. & Yetter, R. A., Dec 1 2009, 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. (45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Flame propagation of nanoaluminum-water mixtures

Sundaram, D. S., Puri, P., Huang, Y., Yetter, R. A., Yang, V. & Risha, G. A., Dec 1 2009, 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. 2009-0641. (47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Hybrid rocket investigations at penn state university's high pressure combustion laboratory: Overview and recent results

Evans, B., Boyer, E., Kuo, K. K., Risha, G. & Chiaverini, M., Dec 1 2009, 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. (45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Scopus citations

Investigation of Bimodal nano/micron Aluminum-Ice (ALICE) Propellants

Connell, Jr., T. L., Risha, G. A., Yetter, R. A., Yang, V. & Son, S. F., Jan 1 2009, Fall Meeting of the Eastern States Section of the Combustion Institute 2009. Combustion Institute, p. 827-833 7 p. (Fall Meeting of the Eastern States Section of the Combustion Institute 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Metal particle combustion and nanotechnology

Yetter, R. A., Risha, G. A. & Son, S. F., Mar 16 2009, In : Proceedings of the Combustion Institute. 32 II, p. 1819-1838 20 p.

Research output: Contribution to journalConference article

468 Scopus citations

The effect of stoichiometry on the combustion behavior of a nanoscale Al/M0O3 thermite

Dutro, G. M., Yetter, R. A., Risha, G. A. & Son, S. F., Jan 1 2009, In : Proceedings of the Combustion Institute. 32 II, 2, p. 1921-1928 8 p.

Research output: Contribution to journalConference article

68 Scopus citations
2008

Ammonia borane based-propellants

Lee, J. G., Weismiller, M., Connell, T. L., Risha, G. A., Yetter, R. A., Gilbert, P. D. & Son, S. F., Dec 1 2008, 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. (44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Combustion and characterization of nanoscale aluminum and ice propellants

Sippel, T. R., Son, S. F., Risha, G. A. & Yetter, R. A., Dec 1 2008, 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. (44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

23 Scopus citations

Combustion and conversion efficiency of nanoaluminum-water mixtures

Risha, G. A., Sabourin, J. L., Yang, V., Yetter, R. A., Son, S. F. & Tappan, B. C., Dec 1 2008, In : Combustion science and technology. 180, 12, p. 2127-2142 16 p.

Research output: Contribution to journalArticle

58 Scopus citations

Combustion characteristics of nanoaluminum, liquid water, and hydrogen peroxide mixtures

Sabourin, J. L., Risha, G. A., Yetter, R. A., Son, S. F. & Tappan, B. C., Aug 1 2008, In : Combustion and Flame. 154, 3, p. 587-600 14 p.

Research output: Contribution to journalArticle

41 Scopus citations
2007

Combustion of bimodal nano/micron-sized aluminum particle dust in air

Huang, Y., Risha, G. A., Yang, V. & Yetter, R. A., Sep 24 2007, In : Proceedings of the Combustion Institute. 31 II, p. 2001-2009 9 p.

Research output: Contribution to journalConference article

136 Scopus citations

Combustion of nano-aluminum and liquid water

Risha, G. A., Son, S. F., Yetter, R. A., Yang, V. & Tappan, B. C., Jan 1 2007, In : Proceedings of the Combustion Institute. 31 II, 2, p. 2029-2036 8 p.

Research output: Contribution to journalConference article

156 Scopus citations

Combustion of nanoscale Al/MoO3 thermite in microchannels

Son, S. F., Asay, B. W., Foley, T. J., Yetter, R. A., Wu, M. H. & Risha, G. A., Jul 1 2007, In : Journal of Propulsion and Power. 23, 4, p. 715-721 7 p.

Research output: Contribution to journalArticle

135 Scopus citations

Deflagrations of nitromethane and nanoaluminum mixtures

Sabourin, J. L., Yetter, R. A., Asay, B. W., Risha, G. A. & Son, S. F., Jan 1 2007, Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2007 "Chemical and Physical Processes in Combustion". Combustion Institute, p. 588-594 7 p. (Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2007 "Chemical and Physical Processes in Combustion").

Research output: Chapter in Book/Report/Conference proceedingConference contribution