@article { author = {Hamediestakhrsar, M.H. and Mahdavy-Moghaddam, H.}, title = {Numerical Investigation of the Circumferential Angle of the Axisymmetric Bypass Dual Throat Nozzle}, journal = {Iranian Journal of Mechanical Engineering Transactions of the ISME}, volume = {22}, number = {1}, pages = {143-154}, year = {2021}, publisher = {Iranian Society of Mechanical Engineering}, issn = {1605-9727}, eissn = {}, doi = {10.30506/jmee.2021.528341.1258}, abstract = {One of the modern concept of Fluidic Thrust Vectoring (FTV) is theBypass Dual Throat Nozzle (BDTN). In the present work this nozzle witha circular cross-section which is called ABDTN has been studiednumerically. In this method a bypass channel separates the main nozzleflow into two parts as a primary and secondary flow from upstream ofthe nozzle throat. The results of the interaction between the main nozzleflow and the bypass channel flow are investigated as a secondaryinjection. The present work discusses about the performanceparameters of the ABDTN, including thrust deflection angle, resultantthrust ratio, discharge coefficient, and thrust vectoring efficiency overa range of nozzle pressure ratios (NPR) to obtain the effects of differentcircumferential angles (α) of the bypass channel. The results ofincreasing α show that the maximum deflection angle will decrease from24º to 21º at the nozzle pressure ratio of 1.5.}, keywords = {numerical simulation,Axisymmetric Bypass Dual Throat Nozzle (ABDTN),Fluidic Thrust Vectoring (FTV),Thrust Ratio}, url = {https://jmee.isme.ir/article_244061.html}, eprint = {https://jmee.isme.ir/article_244061_2bb2e20d531803e42e8b747e179a1aee.pdf} }