Blog – Kojouharov & Ceglarski – Computation & Simulation

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Empirical Modeling of Structural Weight Fraction in Small Aircraft: A Power-Law Approach for Ultralight, LSA, VLA, and Part 23 Categories

Abstract In aircraft design, the structural skeleton weight fraction—defined as the ratio of the primary airframe weight (including wings, fuselage, empennage, and landing gear) to the maximum takeoff weight (MTOW)—plays a critical role in preliminary sizing and performance estimation. This article derives and analyzes an empirical equation, f(M)=1.47×M^(−0.35)+0.20, where M is MTOW in kilograms, fitted […]

BlogAircraft Design

Fluid flow simulation of a charge air pipe

Typical Process of a CFD Simulation

Computational Fluid Dynamics (CFD) is a computer-aided method used to simulate fluid flow in both closed and open systems. CFD allows engineers to predict and analyze the behavior of gases and liquids within a virtual model, accelerating the development of new products and making the process more cost-efficient. A typical CFD simulation process involves creating

What is Structural Analysis (FEA) and where is it used?

Structural analysis, also known as Finite Element Analysis (FEA), is a powerful computational method used to predict the behavior and load-bearing capacity of structures under various conditions. This technique enables engineers to assess and refine designs before physical prototypes are built, ensuring optimal performance and safety. FEA is applied in numerous industries, including mechanical engineering,

BlogStructural Analysis (FEM/FEA)

What is fluid flow simulation (CFD) and where is it used?

Computational Fluid Dynamics (CFD) is a technique for simulating flows and thermal processes in a virtual model. This method uses numerical algorithms to calculate the movement of fluids or gases and their interaction with solid structures. It offers engineers and researchers a wide range of possibilities to understand and optimize complex flow processes. CFD is

BlogComputational Fluid Dynamics (CFD)