Scholarlink

<p>It is well known that multiphase flow formulations for immiscible fluids often suffer from unphysical spreading and distortion of interfaces in the absence of additional sharpening mechanisms developed at the numerical level to address these issues. In the case of underwater explosions (UNDEX), which is a focus of the present paper, the loss of interface sharpness can lead to incorrect explosive bubble dynamics and the resulting poor prediction of structural loads. Here, we propose a stabilized Finite Element formulation for compressible multiphase flow with built-in interface sharpening and species mass balance properties that avoids the extra re-distancing and mass balancing steps. Several UNDEX scenarios are computed, including experimental validation cases, to demonstrate the accuracy and robustness of the proposed approach.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

An efficient naturally sharpened stabilized multiphase flow formulation for modeling underwater explosions

  • 期刊论文

  • 发表日期：

    2025年6月18日

查看全文
  • Hoang Nguyen,
  • Shaunak Shende,
  • Yuri Bazilevs

摘要

It is well known that multiphase flow formulations for immiscible fluids often suffer from unphysical spreading and distortion of interfaces in the absence of additional sharpening mechanisms developed at the numerical level to address these issues. In the case of underwater explosions (UNDEX), which is a focus of the present paper, the loss of interface sharpness can lead to incorrect explosive bubble dynamics and the resulting poor prediction of structural loads. Here, we propose a stabilized Finite Element formulation for compressible multiphase flow with built-in interface sharpening and species mass balance properties that avoids the extra re-distancing and mass balancing steps. Several UNDEX scenarios are computed, including experimental validation cases, to demonstrate the accuracy and robustness of the proposed approach.