RETRACTION: Numerical investigation of nanofluid flow and heat transfer in a pillow plate heat exchanger using a two‐phase model: Effects of the shape of the welding points used in the pillow plate

Abstract RETRACTION : Y. A. Al‐Turki, A. Yarmohammadi, A. Alizadeh, D. Toghraie, “Numerical investigation of nanofluid flow and heat transfer in a pillow plate heat exchanger using a two‐phase model: Effects of the shape of the welding points used in the pillow plate,” Zeitschrift für Angewandte Mathematik und Mechanik (Early View): https://doi.org/10.1002/zamm.202000300 . The above article, published online on 14 January 2021 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal Editor‐in‐Chief and Wiley‐VCH GmbH. The retraction has been agreed as there is unambiguous evidence that this article was accepted on the basis of a compromised peer review process. Therefore, the review of this article is deemed to be insufficient. The authors disagree with the retraction.