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Showing 1 to 10 of 10 for “"Panel Code"”.
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A Three Dimensional Vortex Particle-Panel Code for Modeling Propeller-Airframe Interaction
… to the conceptual designer in the aerodynamic panel code, with a pseudo-steady slipstream model wherein rotational effects are discretized onto vortex particle point elements. The method maintains a freedom from volume grids that are so often necessary in the existing interference models. In …
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A Higher-Order Method Implemented in an Unstructured Panel Code to Model Linearized Supersonic Flows
<p>Since their conception in the 1960s, panel codes have remained a critical tool in the design and development of air vehicles. With continued advancement in computational technologies, today's codes are able to solve flow fields around arbitrary bodies more quickly and with higher fidelity than …
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Creation, Verification, and Validation of a Panel Code for the Analysis of Ship Propellers in a Steady, Uniform Wake
… constant strength source and doublet panels. Accuracy of the numerical method is verified through comparison with analytically known results and the ability of the numerical simulation to predict the thrust and torque on a propeller in open water is assessed through comparison with …
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Determining Parameters for a Lagrangian Mechanical System Model of a Submerged Vessel Maneuvering in Waves
… of data from a medium fidelity potential flow code. In the reformulation process, the order of integration and differentiation in the integro-differential parameters are switched and partial derivatives of the Lagrangian function are computed with readily available data from the panel code …
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Numerical prediction of the maneuvering characteristics of submarines operating near the free surface
… Reynolds-averaged Navier-Stokes (RANS) computer code with an inviscid panel code to predict the maneuvering characteristics of submarines operating near the free-surface has been developed. The RANS code calculates the flow field immediately surrounding and in the wake of the body where viscous …
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An arbitrarily high-order, unstructured, free-wake panel solver
A high-order panel code capable of solving the potential flow equation about arbitrary curved geometries is presented. A new method for integrating curved, high-order panels using adaptive Gaussian quadrature is detailed. Furthermore, automated wake handling is addressed and a method to robustly …
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Numerical investigation of subsonic flow over bodies of revolution and a typical missile forebody
… OVERFLOW, three dimensional, Navier-Stokes Code was applied and detailed results were obtained for the missile forebody. The flow conditions were set at a Mach Number of 0.3 and Reynolds Number of two million for each angle of attack at 0, 2, 6, 10, and 14 degrees. These viscous flow …
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Unsteady aerodynamics for aeroelastic applications using the impulse response method
… Impulse Response method using an aerodynamic panel code, PMARC, to obtain impulse responses. The basic formulation of the method is limited to rigid-body analyses and is thus of limited use to aeroelastic studies. To this end, the method is extended to flexible-body responses by considering …
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Statistical Modeling of Simulation Errors and Their Reduction via Response Surface Techniques
… First, discretization error from a supersonic panel code, WINGDES, is considered. Second, convergence error from a structural optimization procedure using GENESIS is considered along with the Rosenbrock test problem. A grid converge study is performed to estimate the order of the discretization …
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Wake bursting: a computational and experimental investigation for application to high-lift multielement airfoil design
… and higher-order methods including both a panel code and a RANS program. In general, the RANS solver indicated larger and thicker wakes than the wakes predicted by the panel code or captured in the wake surveys. This result of larger and thicker wakes was found to be independent of the …