NASA Technical Reports Server (NTRS) : Boundary pdf

NASA Technical Reports Server (NTRS) : Boundary_bookcover

NASA Technical Reports Server (NTRS) : Boundary

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Boundary Layer Integral Matrix Procedure (BLIMPJ) has been identified by the propulsion community as the rigorous boundary layer program in connection with the existing JANNAF reference programs. The improvements made to BLIMPJ and described herein have potential applications in the design of the future Orbit Transfer Vehicle engines. The turbulence model is validated to include the effects of wall roughness and a way is devised to treat multiple smooth-rough surfaces. A prediction of relaminarization regions is examined as is the combined effects of wall cooling and surface roughness on relaminarization. A turbulence model to represent the effects of constant condensed phase loading is given. A procedure is described for thrust decrement calculation in thick boundary layers by coupling the T-D Kinetics Program and BLIMPJ and a way is provided for thrust loss optimization. Potential experimental studies in rocket nozzles are identified along with the required instrumentation to provide accurate measurements in support of the presented new analytical models

  • Creator/s: NASA Technical Reports Server (NTRS
  • Date: 3/31/1989
  • Year: 1989
  • Book Topics/Themes: NASA Technical Reports Server (NTRS), APPLICATIONS PROGRAMS (COMPUTERS), BOUNDARY LAYER FLOW, MATHEMATICAL MODELS, PERFORMANCE PREDICTION, ROCKET ENGINE DESIGN, SURFACE ROUGHNESS, ALGORITHMS, FIBER OPTICS, MATRICES (MATHEMATICS), ORBIT TRANSFER VEHICLES, ROCKET NOZZLES, SIMULATORS, THRUST MEASUREMENT, TURBULENCE MODELS, WALL PRESSURE, WALL TEMPERATURE, Praharaj, Sarat C., Schmitz, Craig P., Nouri, Joseph A

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