by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va .
Written in English
|Statement||Gino Moretti ; prepared for Lewis Research Center.|
|Series||NASA contractor report -- NASA CR-3689.|
|Contributions||G.M.A.F., Lewis Research Center., United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.|
|The Physical Object|
|Pagination||iii, 35 p. :|
|Number of Pages||35|
Fast Euler Solver for Steady, One-Dimensional Flows Gino Moretti G.M.A.F., Inc. Freeport, New York Prepared for Lewis Research Center under Contract NAS 2 7 7 2 National Aeronautics and Space Administration Scientific and Technical Information Branch The present paper provides a fast Euler solver for the computation of internal flows. This methodology is a natural derivation of the classical lambda formulation and is based on the integration of the compatibility conditions along bicharacteristic lines, thus reducing multi-dimensional flow problems to a sequence of simple quasi one-dimensional by: A new numerical approach to the solution of the steady one-dimensional nozzle flow has been developed. The main advantages of the new method consist in avoiding the discontinuity, and the. G. Moretti, “Fast Euler Solver for Steady One-Dimensional Flows”, Computers & Fluids, vol. 13, , pp. 61– ADS zbMATH CrossRef Google ScholarAuthor: Bernardo Favini.
Fast preconditioned multigrid solution of the Euler and Navier–Stokes equations for steady, compressible flows Article in International Journal for Numerical Methods in Fluids 43(5) - Abstract A new numerical approach to the solution of the steady one-dimensional nozzle flow has been developed. The main advantages of the new method consist in avoiding the discontinuity, and the consequent instability, present in the classical approach and in . for the Euler Equations Sukumar R. Chakravarthy Roc&weZZ International Science Center EULER SOLVER FOR 3-D SUPERSONIC FLOWS .. 86 Summary entropy condition satisfying approximate or exact solutions of the one-dimensional Rie- mann Problem, and second-order accurate one-dimensional Total Variation Diminishing File Size: 4MB. Abstract. The present paper provides a new perturbative lambda formulation for the numerical solution of compressible flows. The time-dependent Euler equations are recasted in terms of compatibility equations for perturbative bicharacteristic variables (which are the difference between the standard Riemann variables and those corresponding to an appropriate steady incompressible flow) Cited by:
imation algorithm for steady one-dimensional (1D) transonic ﬂow solutions of the Euler equations of gas dynamics. In the ﬁrst part of the paper, we con-sider outﬂow solutions of the radial compressible Eu-ler equations with gravity and heat source terms: t 2 6 4 rr2 rur2 (p g 1 + ru2 2)r 2 3 7 5+ r 2 6 4 rur2 ru2 r2 +pr2 (gp g 1 File Size: KB. Fluid Mechanics Problems for Qualifying Exam (Fall ) 1. Consider a steady, incompressible boundary layer with thickness, δ(x), that de-velops on a ﬂat plate with leading edge at x = 0. Based on a control volume analysis for the dashed box, answer the following: a) Provide an expression for the mass ﬂux ˙m based on ρ,V ∞,andδ. An improved lambda-scheme for one-dimensional flows. [Washington, D.C.]: [Springfield, Va: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; For sale by the National Technical Information Service] MLA Citation. Moretti, Gino. and DiPiano, Michael T. and Langley Research Center. and United States. The Euler equations can be solved using the ﬂux The Roe approximate Riemann solver was one of the ﬁrst method to compute the ﬂuxes in a “simpler” way.! It is based on approximating the Euler equation by a linear equation! apply one-dimensional methods to each.