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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"Stagnation point"”.
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Rotational Stagnation Point Flow
Made available in DSpace on 2015-05-12T22:35:16Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7206876.PDF: 1836095 bytes, checksum: 99adb1fc4d64419e5cf557d8052d1aed (MD5) Previous issue date: 1971
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Exact Solutions for Orthogonal and Non-Orthogonal Magnetohydrodynamic Stagnation-Point Flow
<p>The viscous plane flow of an electrically conducting fluid towards an infinite wall is solved in the presence of a magnetic field which is aligned with the flow far from the wall. The problem has two dimensionless parameters-- ε, the magnetic Prandtl number, and β, the square of the ratio of …
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Flame stabilization and mixing characteristics in a stagnation point reverse flow combustor
A novel combustor design, referred to as the Stagnation Point Reverse-Flow (SPRF) combustor, was recently developed that is able to operate stably at very lean fuel-air mixtures and with low NOx emissions even when the fuel and air are not premixed before entering the combustor. The primary …
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Optimal Control of a Reactive Stagnation Point Flow on a Catalytic Plate
… over the last few years, is the reactive stagnation point flow on a catalytic plate. After evaluation of the reaction mechanisms the next step is to look for optimal process conditions. In this thesis a new software package has been developed based on the simulation code DIFRUN and the …
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Slip effect on stagnation-point flow past a permeable quadratically stretching or shrinking sheet
Slip effect on stagnation-point flow past a permeable quadratically stretching or shrinking sheet has been investigated. The governing equations are reduced from system of partial differential equations to system of ordinary differential equations by selecting appropriate variables. The system of …
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Self-sustained combustion of low grade solid fuels in a stagnation-point reverse-flow combustor
This thesis investigates the use of the Stagnation-Point Reverse-Flow (SPRF) combustor geometry for burning low-grade solid fuels that are attractive for specific industrial applications because of their low cost and on-site availability. These fuels are in general, hard to burn, either because of …
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Relation between flame speed and stretch for a premixed flame in a stagnation point flow
The student, Midhun Joy, submitted this Thesis for approval on 2017-12-11 at 14:52.
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Thermal radiation and slip effects on mhd stagnation point flow of nanofluid over a shrinking sheet
… and slip effects on magnetohydrodynamic stagnation point flow over a shrinking sheet. The velocity, temperature, and nanoparticles concentration profiles are analyzed with respect to the involved parameters such as Lewis number, magnetic parameter, radiation parameter, Brownian motion, …
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Stagnation-point flow past a vertical stretching or shrinking sheets in a nanofluid with slip effect
This dissertation investigates the boundary layer stagnation-point over a shrinking or stretching sheet in the presence of velocity slip and thermal slip. Governing non-linear PDEs are transformed into corresponding non-linear coupled ODEs along with boundary conditions using similarity …
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The effects of surface roughness on stagnation-point heat transfer during impingement of turbulent liquid jets
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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The simultaneous measurement of time-resolved surface heat flux and freestream turbulence at a stagnation point
… response. They were then placed at a flow stagnation point. A velocity probe is positioned outside the boundary layer adjacent to the gage. Simultaneous monitoring of these signals allowed the time-resolved documentation of the effects of local freestream turbulence on boundary layer heat …
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MULTIDISCIPLINARY OPTIMIZATION OF NON-SPHERICAL, BLUNT-BODY HEAT SHIELDS FOR A PLANETARY ENTRY VEHICLE
… aerodynamic performance, static stability, and stagnation-point heat transfer has been completed to find optimal heat shield geometries for blunt-body planetary entry vehicles. In the parametric study, performance trends have been identified by varying geometric parameters that define a range of …
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Numerical study of linearized unsteady stagnation flow
<p>The stability of stagnation point flow has long been recognized as an important problem in aerodynamic analysis. Boundary layer disturbances located near the stagnation line can have a significant effect on the overall properties of an airfoil. One example of current interest is the analysis of …
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Air flow effects in the piston ring pack and their implications on oil transport
… ring groove due to the creation of a blowby stagnation point. Far away from the gaps, oil is mainly transported in axial direction through the grooves and the piston-liner interface. Low capillary numbers in the order of 10-5 indicate close to no oil transport into circumferential direction …
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Heat Transfer Characterization in Jet Flames Impinging on Flat Plates
… increasing the axial distance to H/d = 5, the stagnation point h decreased by 15%. Adiabatic surface temperature (AST) distribution at the plate surface was computed from the measured heat flux and temperature. AST values were found to be lower than the measured gas temperature values at the …
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Potential flow solution and incompressible boundary layer for a two-dimensional cascade
… behavior, even close to the leading and trailing stagnation point. The latter fact represents an improvement to results obtained from a previous work [ref. 3], however the calculations still need to be confirmed by the experiment. In the second part of this thesis, following a recommendation of …
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Reducing turbulence- and transition-driven uncertainty in aerothermodynamic heating predictions for blunt-bodied reentry vehicles
… as a function of leeward distance from the stagnation point, was approximated by Re[subscript theta], Ma[subscript e], [mathematical equation], v[subscript w, superscript plus sign], and T[subscript e]/T[subscript w] along with perfect gas assumptions. Homogenized turbulent boundary layers …
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