Pumping ﬂow model for couple stress ﬂuids with a propagative membrane contraction Journal Pre-proof Pumping ﬂow model for couple stress ﬂuids with a propagative membrane contraction D.S. Bhandari, Dharmendra Tripathi, V.K. Narla PII: S0020-7403(20)31986-X DOI: https://doi.org/10.1016/j.ijmecsci.2020.105949 Reference: MS 105949 To appear in: International Journal of Mechanical Sciences Received date: 8 May 2020 Revised date: 11 July 2020 Accepted date: 15 July 2020 Please cite this article as: D.S. Bhandari, Dharmendra Tripathi, V.K. Narla, Pumping ﬂow model for couple stress ﬂuids with a propagative membrane contraction, International Journal of Mechanical Sciences (2020), doi: https://doi.org/10.1016/j.ijmecsci.2020.105949 This is a PDF ﬁle of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the deﬁnitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its ﬁnal form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier Ltd.