Numerical Investigation of Flow in Duel bell Nozzle

  Mohammad Azis khan,  Y.N.V. Santhosh Kumar,  M.Venkatesh

Abstract - The dual bell nozzle is a concept of altitude adaptive nozzles. The flow adapts separation at the wall inflection at low altitude, and full flowing at high altitude. To understand the phenomenology of the flow by the transition from sea level to high altitude mode, a series of CFD Simulations are carried out understand the physics of flow. Its results are compared with conventional bell nozzle. ANSYS ICEMCFD and CFX are used for simulations. Parametric numerical simulations of the flow field development are performed to quantify the different losses due to flow separation. A secondary injection method is used to avoid flow separation thus the effect of side loads on nozzle. Various injection speeds are also considered in the present analysis and its effect on efficiency of nozzle. Results Has been extracted using ANSYS CFD POST with Velocity streamlines, temperature contours, Mach plots etc.

Keywords- FLOW SEPARATION,SHOCK FORMATION, RAO CONTOUR INFLATION POINT,PRESSURE VARIATION

Unique Identification Number - IJEDR1504020
Page Number(s) - 1-9
Pubished in - Volume 3 | Issue 4 | October 2015
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Mohammad Azis khan,  Y.N.V. Santhosh Kumar,  M.Venkatesh,   "Numerical Investigation of Flow in Duel bell Nozzle", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.3, Issue 4, pp.1-9, October 2015, Available at :http://www.ijedr.org/papers/IJEDR1504020.pdf