Matthew Goodson

Importance of Characterizing Heat Transfer in Both the Tool and Workpiece for Friction Stir Welding Thermal Model Validation

Muhammad Taha, Matthew Goodson, Ryan Melander, Troy Munro et autres

Accurate thermal modeling of friction stir welding (FSW) requires correct representation of heat generation and heat partitioning at the workpiece/tool interface. However, most published models are validated against temperature measurements from only one side of this interface, so agreement with experiment does …

Modern measurement of local radial thermal conductivity of irradiated he-bonded U-10 wt. % Zr annular fuel: A cross-correlative study with electron probe microanalysis techniques

Cynthia A. Adkins, Matthew Goodson, Mary Meyer, Karen Wright et autres

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Transport and Reignition of Unburnt n-Dodecane Fuel Droplets in a Transverse Jet in Supersonic Crossflow

C A Ramm, Prashant Tarey, John Boles, Tanner B. Nielsen et autres

The canonical "jet in a crossflow" (JICF) problem is of significant recent interest in divert thrusters (used in hypersonic missiles, interceptors, and re-entry vehicles), as well as in scramjets and detonation engines. This study presents detailed 3D numerical simulations of a jet …

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A Numerical Investigation of Liquid Fuel Powered Rotating Detonation Engines

Madhav Nagori, Prashant Tarey, John Boles, Tanner B. Nielsen et autres

Rotating Detonation Engines (RDE) have gained significant interest in recent years owing to their higher efficiencies and compact design. However, to be practical in propulsion applications, RDEs will need to be powered by high-density liquid fuels. At the same time, complex multiphase …

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Effect of Workpiece/Tool Heat Transfer and Friction Coefficients on Accuracy of Simulated Temperatures and Torques in a Friction Stir Welding Plunge

Matthew Goodson, Ryan M. Melander, Michael Miles, Troy Munro

Friction stir process models are typically validated by tuning heat transfer and friction coefficients until measured temperatures in either the tool or workpiece, but rarely in both, match simulated results. A three-dimensional finite element model for a tool plunge in an AA …

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Correction: A Moving Discontinuous Galerkin Method with Interface Condition Enforcement for Reacting Hypersonic Flows

Hong Luo, Gianni Absillis, Matthew Goodson, Giovanni Salazar et autres

Hypersonic Flows" -Interface Condition is the correct term for the method by

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A Moving Discontinuous Galerkin Method with Interface Condition Enforcement for Reacting Hypersonic Flows

Hong Luo, Gianni Absillis, Matthew Goodson, Giovanni Salazar et autres

View Video Presentation: https://doi.org/10.2514/6.2023-0855.vid A moving discontinuous Galerkin (MDG) finite element method with interface conservation enforcement is developed for solving reactive flow problems, where both conservative variables and grid geometry are considered as independent variables. A space-time DG formulation is used to …

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Application of a Self-Adaptive Levenberg-Marquardt Algorithm to Solve the Moving Discontinuous Galerkin Method with Interface Conservation Enforcement System

Gianni Absillis, Hong Luo, Robert R. Nourgaliev, Matthew Goodson et autres

View Video Presentation: https://doi.org/10.2514/6.2023-1976.vid The Moving Discontinuous Galerkin method with interface Conservation Enforcement (MDG-ICE) introduced by Corrigan et al.[CKK19] is a powerful new method that can exactly fit shock waves, material discontinuities, and contact discontinuities. To do this MDG-ICE forms an over-determined …

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