Numerical Investigation of the Thermohydraulic Performance of Double-Wave Cross-Corrugated Passages(PDF)
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Numerical Investigation of the Thermohydraulic Performance of Double-Wave Cross-Corrugated Passages(PDF)
- 发表刊物：
- Numerical Heat Transfer. Part A. Application
- 摘要：
- A numerical study on flow and heat transfer in double-wave cross-corrugated passages with
different structure parameters was conducted. The three-dimensional governing equations
for mass, momentum, and heat transfer were solved using a control volume finite difference
method and a validated low-Reynolds number k-e model. The effects of Reynolds number
and structure parameters, including pitch ratio (P1/P2) and height ratio (H1/H2), were
studied. It was found that with a decrease in height ratio, the mainstream flow changed from
a pattern dominated by L-shaped flow to one dominated by Z-shaped flow, whereas pitch
ratio had almost no influence on the flow pattern. The average Nusselt number Nuav first
increased and then decreased gradually with either an increase in the pitch ratio or a
decrease in the height ratio. Pressure drop showed the same trend as heat transfer performance.
The best performance evaluation criterion number (g) of double-wave passage was
nearly 20% higher than that of the corresponding single-wave passage, whereas the worst
was nearly 40% lower. On the whole, the double-wave plate with H1/H2¼5 showed better
overall performance. The double-wave plate with P1/P2¼1 had better overall performance
for Re<5,000, whereas that with P1/P2¼3 was better for Re>7,500.
- 合写作者：
- Limin Wang , Lei Deng, Zhenxing Zhao , Xin Zhu, Defu Che
- 卷号：
- 卷: 67 期: 10
- 页面范围：
- 1029-1052
- 是否译文：
- 否
- 发表时间：
- 2015-05-20