Papers by suresh aggarwal
Modern diesel injectors are characterized by high injection pressures wherein the flow inside the... more Modern diesel injectors are characterized by high injection pressures wherein the flow inside the orifice and sac be-comes turbulent and cavitation patterns are observed at the orifice exit. Traditionally cavitation inception in diesel injectors is based on the condition that local pressure drops below the vapor pressure of the fuel. While this criterion is seen to predict cavitation inception reasonably well, recent studies have shown that normal viscous stresses should be considered in addition to pressure, since a fluid element experiences stresses rather than the local pressure. This theory is applied to high Reynolds number flows in diesel injectors. The differences between traditional and total stress criteria to predict cavitation inception was found to be insignificant. The total stress criterion which is based on molecular viscosity was modified to include the effect of turbulent viscosity. For high injection pressure when the flow inside the injector is turbulent this new ...
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possible to establish a nearly steady 0- g flame in roughly 2.2 s. The overall effect of radiatio... more possible to establish a nearly steady 0- g flame in roughly 2.2 s. The overall effect of radiation on the structure of the 1- g flame is relatively insignificant in contrast to the corresponding 0- g flame. Due to radiation effects, the heights of both the inner premixed and outer nonpremixed reaction zones in the 0-g double flame increase, and
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47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition, 2009
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Volume 3: Combustion Science and Engineering, 2008
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Physics of Fluids, 2001
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Numerical Heat Transfer, Part A: Applications, 2003
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Journal of Heat Transfer, 2002
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International Journal of Heat and Mass Transfer, 2010
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Fuel, 2006
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Combustion Theory and Modelling, 2004
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Combustion Science and Technology, 2007
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Combustion Science and Technology, 2007
A numerical investigation of high pressure, counterflow methane-air partially premixed flames (PP... more A numerical investigation of high pressure, counterflow methane-air partially premixed flames (PPFs) is presented to characterize the effect of pressure on flame structure. Four different mechanisms, namely GRI-2.11, GRI-3.0, the San Diego, and the C2 mechanisms have been examined. The mechanisms have been validated by comparing the predicted laminar flame speeds with experi- mental data. While there is excellent agreement
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Combustion and Flame, 2008
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Combustion and Flame, 1997
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Combustion and Flame, 2005
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Combustion and Flame, 1999
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Combustion and Flame, 2001
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Combustion and Flame, 2007
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Combustion and Flame, 1997
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Papers by suresh aggarwal