Numerical Considerations for Quantifying Air–Water Turbulence with Moment Field Equations
Numerical Considerations for Quantifying Air–Water Turbulence with Moment Field Equations
复制标题
用矩场方程量化空气-水湍流的数值考虑
DOI:
10.1007/s42286-021-00048-y
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Kubatko, Ethan J.
中科院分区:
文献类型:
--
作者:
Conroy, Colton J.;Mandli, Kyle T.;Kubatko, Ethan J.
We investigate energy transfer of air–water interactions and develop a numerical method that captures its temporal variability and generates and tracks the short waves that form in the water surface as a result of the air–water turbulence. We solve a novel system of balance equations derived from the Navier–Stokes equations known as moment field equations. The main advantage of our approach is that we do not assume a priori that the stochastic random variables that quantify the turbulent energy transfer between air and water are Gaussian. We generate non-conservative multifractal measures of turbulent energy transfer using a recursive integration process and a self-affine velocity kernel. The kernel exactly satisfies the (duration limited) kinetic equation for waves as well as invariant scaling properties of the Navier–Stokes equations. This allows us to derive source terms for the moment field equations using a turbulent diffusion operator. The operator quantifies energy transfer along a space time path associated with pressure instabilities in the air–sea interface and transfers the statistical shape (or fractal dimension) of the atmosphere to the wind-sea. Because we use observational data to begin the recursive integration process, the ocean–atmosphere interaction is inherently built into the model. Numerical results from application of our methods to air–sea turbulence off the coast of New Jersey and New York indicate that our methods produce measures of turbulent energy transfer that match theory and observation, and, correspondingly, significant wave heights and average wave periods predicted by our model qualitatively match buoy data.
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DOI:
10.1016/j.physd.2006.01.012
发表时间:
2005-12
期刊:
Physica D: Nonlinear Phenomena
影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
2017
期刊:
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2020
期刊:
Synergetics
影响因子:
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通讯作者:
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影响因子:
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通讯作者:
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DOI:
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1992
期刊:
影响因子:
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通讯作者:
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