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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Computer program gives blade-to-blade solution of the two-dimensional, subsonic, compressible, nonviscous flow problem for a circular or straight infinite cascade of tandem or slotted turbomachine blades. The method of solution is based on the stream function using iterative solution of nonlinear finite-difference equations.
Computer program solves transient or steady-state heat flow problems through the concept of lumped parameters expressed as the electrical analog of the heat transfer problem using finite differences techniques.
Computer program, using numerical integration and finite difference techniques, solves almost any buckling problem for shells exhibiting orthotropic behavior. Stability analyses can be performed with reasonable accuracy and without unduly restrictive approximations.
Finite difference techniques used in numerical solutions for inviscid radiating shock layers around spheres at hyperbolic speed in air
Finite difference theory for transonic velocity calculations on blade-to-blade stream surface of turbomachine
Optimal control problems for Markov chains solved by iterative method, using nonlinear finite difference equations to approximate degenerate elliptic functions
Chemical kinetic model for hydrocarbon fuels combustion and application to multidimensional finite difference mixing analyses in hypersonic engines and nozzles
Spherical caps axisymmetric static and dynamic buckling under load, using axisymmetric nonlinear elastic shell theory approximation and finite difference equations
Axisymmetric jet impingement against solid plane from tube at finite distance, using nonlinear partial differential equation in finite difference form
Finite difference method computer programs for calculation of velocities and streamlines on blade to blade surface of revolution of turbomachine
Finite difference Newton-Raphson algorithm extension to solve variational equations for simultaneous optimization of trajectories and associated parameters
Transient thermal analysis of space radiators excluding finite difference equations, noting computer adaptability and time saving
Compressible hypersonic turbulent boundary layers solution by finite difference method, relating mixing length to velocity profile shape factor
Von Karman equations in dimensionless and finite difference forms for deflections of elastic circular plate with central hole under load solved by iteration
Boundary conditions for Tricomi equation in symmetric positive form, showing analytical and finite difference solutions
Eigenvalues and finite difference theory for flutter of thermally stressed plates at hypersonic speeds
Finite difference method for transonic flow solution in axial stator
Contour integrals and finite difference in Radiation View Digital Computer Program