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Estimation of ship roll dam** and natural frequency using an extended Kalman filter applied to URANS output
This article discusses an alternative way of evaluating the roll dam** coefficient and natural frequency of a floating body. Experimental values...
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Aeroacoustics of High Fidelity URANS Simulations of Distributed Electric Propellers
A distributed propeller configuration was investigated by using CFD flow field data and evaluating the acoustics in the far field with the Ffowcs...
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3D CFD modeling for the limits’ identification of 2D flow pattern’s effects on the aerodynamic performance of a reference H-Darrieus prototype
AbstractThe comparative assessment carried out in this paper aims to investigate the results driven from our 2D and 3D CFD modeling of H-Darrieus,...
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Uncertainty Quantification in the Aeroelastic Response of a Twin-Box Deck Depending on the Inlet Conditions by CFD Studies
The stochastic collocation method is applied to assess the impact of uncertainties in the angle of attack and the turbulence intensity in the force...
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Unsteady RANS CFD Simulation on the Parametric Roll of Small Fishing Boat under Different Loading Conditions
Fishing boats have unique features that make them prone to changing loading conditions. When the boat leaves the port, the empty fish tank gradually...
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Preliminary CFD Validation of Unsteady Onflow Effects on Model Train Drag
The DLR New Generation Train Cargo concept (NGT-Cargo) aims to increase the rail share of the European freight traffic market. Computational Fluid...
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CFD simulation of pum** ventilation in a three-story isolated building with internal partitioning: Effects of partition widths, heights and locations
Pum** ventilation (PV), a special single-sided ventilation (SSV), has been certified as an effective strategy to improve the air exchange rate of...
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A CFD study on the hydrodynamic response of a small-scale ice floe induced by a passing ship
A Reynolds averaged Navier-Stokes (RANS) computational fluid dynamics (CFD) model is built to investigate the hydrodynamic response of a circular ice...
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Wärmeübergang in der 3D-CFD-Verbrennungssimulation
In diesem Kapitel soll abschließend auf die Wärmeübergangsberechnung innerhalb der 3D-CFD-Simulation eingegangen werden. In Abschnitt 5.1 werden...
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Aerodynamic performance and efficiency enhancement of a Savonius vertical axis wind turbine with Semi-Directional Curved Guide Vane, using CFD and optimization method
Savonius vertical axis wind turbines, as a type of drag-based power generator turbomachine, have long been characterized by low-efficiency...
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2D PIV/PTV–3D uRANS RSM Investigation on the Combined Effect of Iron Filings Filtering Techniques in a Backward Facing Step Flow
The presence of suspended particles in liquid fluids is one of the main reasons for hydraulic system failure. Metallic impurities in particular...
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URANS simulations for a free-running container ship: Part 1. Turning-circle
The incompressible unsteady Reynolds-averaged Navier-Stokes (URANS) simulations are performed for a free-running container ship in maneuvering...
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CFD Analysis of Primary Air Flow Field of a Swirl Injector Using Embedded LES-Based Hybrid Model
Injector plays a pivotal role in meeting requirements of combustion performance in terms of combustion efficiency, flame stability, ignition, lower...
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A Comprehensive Parametric CFD Investigation on Packed Bed Thermal Energy Storage System with Encapsulated Solid–Solid Phase Change Materials in Discharging Mode
The increasing growth of energy consumption and the decreasing trend of fossil reserves as well as the increase of environmental pollutants have made...
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Aerodynamic Performance Predictions of Mars Helicopter Co-axial Rotor in Hover by Using Unsteady CFD Simulations
The aim of this study is to investigate the complex flow physics and performance characteristics of co-axial rotors in Martian atmospheric conditions...
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Optical spray investigations and 3D-CFD numerical analysis of the nozzle flow of a methanol HPDI injector for maritime applications
This article presents results of the optical spray investigations of a methanol high-pressure direct injector for maritime applications. The injector...
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A CFD Analysis of Water Jet Uniformity Using Oscillating Interior Atomizers for Insulator Cleaning
This article proposes to carry out a CFD analysis of the uniformity of a demineralized water jet through a mechanical design of a fluidic oscillating...
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Pressure Power Spectra of a ‘Z’ Shaped in Plan Tall Building under Transient Wind Environment
This study foresees the behavior of a ‘Z’ shaped in plan tall building under transient wind storms using unsteady Reynolds-averaged Navier Stokes...
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URANS simulations for a free-running container ship: Part 2. Added power
Part 2 reports the validation, local force and local flow study results for the free-running added power simulations whose conditions are the same as...
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Particle dispersion in the turbulent wake of an Ahmed body: An experimental and computational study
Moving vehicles pick up the particulates/dust on the road surface, and the wake structures behind the vehicle determine the dispersion of these...
