EFFECT OF SECONDARY FLOW INJECTION AREA ON THRUST VECTORING ANGLE IN DOUBLE THROAT NOZZLES

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HAMEDI MOHAMMAD HADI; JAHROMI MEHDI; MAHMODI MOSTAFA; PIRKANDI JAMASB

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Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:1 Page(s): 117-125

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Title

EFFECT OF SECONDARY FLOW INJECTION AREA ON THRUST VECTORING ANGLE IN DOUBLE THROAT NOZZLES

Author(s)

HAMEDI MOHAMMAD HADI | JAHROMI MEHDI | MAHMODI MOSTAFA | PIRKANDI JAMASB | Issue Writer Certificate

Keywords

FLUIDIC THRUST VECTORINGQ1

PITCH THRUST VECTOR ANGLEQ2

VECTORING EFFICIENCYQ2

DISCHARGE COEFFICIENTQ2

THRUST COEFFICIENTQ2

Abstract

The present paper discusses a technique that can be used to vector the exhaust flow in the pitch directions using Double Throat nozzle (DTN). Compressible and supersonic gas flow inside a Double Throat nozzle and its exhaust plume at specific nozzle pressure ratios have been numerically studied with several turbulence models. Numerical results reveal that, the SST k-ω model gave the best results compared with the other models in time and accuracy. In the present research, effects of changes in injection area of secondary flow and percentage of secondary mass flow rate on performance of Double Throat nozzle and thrust vectoring system have been investigated. The predicted results show that by decreasing the value of secondary flow injection area in a case with 7% secondary injection, the thrust vector angle increase 12o to 20o and thrust VECTORING EFFICIENCY will increase. But by increasing the value of secondary flow injection area, the thrust and DISCHARGE COEFFICIENT (10%) will increase. Also, when secondary mass flow rate increases, the discharge and THRUST COEFFICIENT will decrease.

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APA: Copy

HAMEDI, MOHAMMAD HADI, JAHROMI, MEHDI, MAHMODI, MOSTAFA, & PIRKANDI, JAMASB. (2015). EFFECT OF SECONDARY FLOW INJECTION AREA ON THRUST VECTORING ANGLE IN DOUBLE THROAT NOZZLES. MODARES MECHANICAL ENGINEERING, 15(1), 117-125. SID. https://sid.ir/paper/179290/en

Vancouver: Copy

HAMEDI MOHAMMAD HADI, JAHROMI MEHDI, MAHMODI MOSTAFA, PIRKANDI JAMASB. EFFECT OF SECONDARY FLOW INJECTION AREA ON THRUST VECTORING ANGLE IN DOUBLE THROAT NOZZLES. MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(1):117-125. Available from: https://sid.ir/paper/179290/en

IEEE: Copy

MOHAMMAD HADI HAMEDI, MEHDI JAHROMI, MOSTAFA MAHMODI, and JAMASB PIRKANDI, “EFFECT OF SECONDARY FLOW INJECTION AREA ON THRUST VECTORING ANGLE IN DOUBLE THROAT NOZZLES,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 1, pp. 117–125, 2015, [Online]. Available: https://sid.ir/paper/179290/en

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