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Verification and Validation of URANS Wave Resistance for Air Cushion Vehicles, and Comparison With Linear Theory

机译:气垫车URANS波浪阻力的验证与线性理论比较

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摘要

Verification and validation of URANS wave-resistance predictions for straight-ahead and yawed air-cushion vehicles in calm deep and shallow water are performed. The nonlinear and linear theories are compared to explicate their trends for large cushion pressures, water depth, and cushion dimensions, and the nonlinear theory sinkage and trim trends are discussed. The grid verification study shows monotonically converged solutions with averaged uncertainty of 4% and 10% for straight-ahead motion in deep and shallow water, respectively.
机译:在平静的深水和浅水中,对直行和偏航气垫车辆的URANS波浪阻力预测进行了验证和确认。比较了非线性和线性理论,以阐明其在较大的垫层压力,水深和垫层尺寸方面的趋势,并讨论了非线性理论下沉和修整趋势。网格验证研究显示,对于深水和浅水,直线运动的单调收敛解的平均不确定度分别为4%和10%。

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