Coupled differential-algebraic equations framework for modeling six-degree-of-freedom flight dynamics of asymmetric fixed-wing aircraft

Autor: Marzouk, Osama A.

Publikováno v: International Journal of Advanced and Applied Sciences. 12(1), 30-51 (2025)

This study presents a comprehensive mathematical framework for modeling the flight dynamics of a six-degree-of-freedom fixed-wing aircraft as a rigid body with three control surfaces: rudder, elevators, and ailerons. The framework consists of 35 diff

Externí odkaz: http://arxiv.org/abs/2412.17280

New Weighted Sum of Gray Gases (WSGG) Models for Radiation Calculation in Carbon Capture Simulations: Evaluation and Different Implementation Techniques

Autor: Marzouk, Osama A., Huckaby, E. David

Publikováno v: 7th U.S. National Technical Meeting of the Combustion Institute, Atlanta, Georgia, USA, March 20-23, 2011, vol. 4, pp. 2483-2496. https://www.gbv.de/dms/tib-ub-hannover/668675667.pdf

We apply several weighted sum of gray gases models (WSGGMs) to calculate the radiative absorption coefficient for gas mixtures containing H2O and CO2. Our main objectives are to analyze and compare four WSGGMs which have been recently developed for o

Externí odkaz: http://arxiv.org/abs/2411.18467

LazyDINO: Fast, scalable, and efficiently amortized Bayesian inversion via structure-exploiting and surrogate-driven measure transport

Autor: Cao, Lianghao, Chen, Joshua, Brennan, Michael, O'Leary-Roseberry, Thomas, Marzouk, Youssef, Ghattas, Omar

We present LazyDINO, a transport map variational inference method for fast, scalable, and efficiently amortized solutions of high-dimensional nonlinear Bayesian inverse problems with expensive parameter-to-observable (PtO) maps. Our method consists o

Externí odkaz: http://arxiv.org/abs/2411.12726

Conditional simulation via entropic optimal transport: Toward non-parametric estimation of conditional Brenier maps

Autor: Baptista, Ricardo, Pooladian, Aram-Alexandre, Brennan, Michael, Marzouk, Youssef, Niles-Weed, Jonathan

Conditional simulation is a fundamental task in statistical modeling: Generate samples from the conditionals given finitely many data points from a joint distribution. One promising approach is to construct conditional Brenier maps, where the compone

Externí odkaz: http://arxiv.org/abs/2411.07154

Multi-Physics Mathematical Model for Weakly-Ionized Plasma Flows

Autor: Marzouk, Osama A.

Publikováno v: American Journal of Modern Physics, vol. 7(2), pp. 87-102, 2018

This work presents a multidisciplinary mathematical model, as a set of coupled governing equations and auxiliary relations describing the fluid-flow, thermal, and electric fields of partially-ionized plasma with low magnetic Reynolds numbers. The mod

Externí odkaz: http://arxiv.org/abs/2410.23314