Advanced SearchSearch Tips
Numerical Study on Thrust Characteristics of an External Pintle Thruster
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Numerical Study on Thrust Characteristics of an External Pintle Thruster
Choi, Junsub; Kim, Dongyeon; Huh, Hwanil;
  PDF(new window)
Numerical computations were performed to investigate the effects of pintle stroke, altitude, and bore on the performance of an external pintle thruster. Results show that under-expansion flow occurs always, independent of pintle stroke. An external pintle thruster shows good performance in that it is capable of good amount of thrust control, while aerodynamic loads are increased due to shock waves on the pintle support. When altitude is increased to 20 km, the nozzle exit velocity, Mach number, thrust as well as aerodynamic loads are increased. Bore increases aerodynamic load 5.9%, and therefore pintle shape without bore is preferred for lower aerodynamic load of a pintle in order to actuate the pintle.
External Pintle Thruster;Pintle Stroke;Thrust;Aerodynamic Load;
 Cited by
Kim, S. S. and Huh, H., "Recent Progress in R&D and Prospect of Divert and Attitude Control System(DACS)", Journal of the Korean Society of Propulsion Engineers, Vol. 16, No. 6, 2012, pp. 71-81.

Lee, J. H., Kim, J. K. and Jang, H. B., "A study on internal flow field of supersonic nozzle by needle type pintle position", KSPE Fall Conference, 2008, pp.269-272.

Humble, R. W., Henry, G. N. and Larson, W. J., Space propulsion analysis and design, McGraw-Hill, New York, U.S.A., 1995.

Lee, J. H., Kim, Y. C., Park, S. H., Lim, S. T., Oh, S. J., Won, J. W. and Yun, E. Y., "A Study on the performance of variable thrust rocket motor by the pintle nozzle", KSPE Fall Conference, 2012, pp. 367-370.

Lee, S. K. and Huh, H., "Effect of pintle shape on nozzle flow-pattern", KSPE Fall Conference, 2012, pp. 313-316.

Jeong, K. Y., Heo, J. Y., Sung, H. G., Yang, J. S. and Ha, D. S., "Thrust Characteristics of Through-type Pintle Nozzles with Large Scale Separation Flow", KSPE Spring Conference, 2014, pp. 32-38.

Choi, J. S. and Huh H., "Effect of Pintle Stroke on Internal/External Pintle Thrusters", KSPE Fall Conference, 2013, pp. 363-366.

US 6591603 B2, "Pintle Injector Rocket with Expansion-Deflection Nozzle", US Patent, 2003.7.

US 5456425 A, "Multiple Pintle Nozzle Propulsion Control System", US Patent, 1995.10.

Wang, S. W. and Huh, H., "Effect of Pintle Inflection Points on Performance of the SNECMA Modulatable Thrust Devices", KSPE Fall Conference, 2011, pp. 237-240.

Kim, D. Y., "CFD Simulation of a Nozzle Throat for Inside- and Outside-Type Pintle Thrusters", Master Dissertation, Chungnam National University, 2012.

Choi, J. S. and Huh, H., "Performance Estimation of the Altitude Compensating External Pintle Thruster", KSAS Spring Conference, 2015, pp.549-552.

Choi, J. S. and Huh, H., "Bore Effects on Aerodynamic Loads for External Type Pintle Thrusters", KSPE Fall Conference, 2014, pp.660-661.