New Formulation for Semi-Empirical Correlations for Penetration Jets

• 作者: D. A. Andrade L. O. Freire M. O. Menezes M. S. Rocha N. L. Scuro R. R. Pacheco
• 来源期刊: 核科学与技术国际期刊(英文)
• 学科: 医学
• 关键词: Direct Contact CONDENSATION Vapor JET STEAM JET STEAM Mass Flux Vapor Cavity REYNOLDS Number JET Radius Rate of CONDENSATION Non-Dimensional JET Length Liquid Pool DIMENSIONLESS Transport Modulus CONDENSATION Driving Potential
• 年，卷（期）: 2019,（2）
• 页码范围: 96-111
• 页数: 16页
• 分类号: R73

摘要

Correlations for the extension of a water vapor jet injected in a liquid pool were historically proposed considering the mass flux (kg/m2/s) as a constant. The results were satisfactory, however adjusting the values by linear regression. Although, it presents the following drawbacks: 1) the formulation is only valid for the specific range of data for what it was created;2) it does not allow the analytical evaluation of the heat transfer coefficient from the extension equation. This paper proposes a new formulation for the calculation of the mass flux, in such a way to remove both of these drawbacks.