The Conference Proceedings will be published with an ISSN and ISBN, indexed in Google Scholar, and archived permanently in Portico. The 7th International Conference on Experimental and Numerical Flow and Heat Transfer (ENFHT'21) aims to become the leading annual conference in fields related to experimental and numerical flow and heat transfer. The goal of ENFHT'21 is to gather scholars from all over the world to present advances in the relevant fields and to foster an environment conducive to exchanging ideas and information. This conference will also provide an ideal environment to develop new collaborations and meet experts on the fundamentals, applications, and products of the mentioned fields. ENFHT'21 is an acronym for Experiemental and Numerical Flow and Heat Transfer. Topics for ENFHT’21 include, but are not limited, to the following: CFD Environments and Heat Transfer Flow and Heat Transfer in Microchannels Heat Transfer Enhancement Heat Transfer in Porous Media HVAC Industrial Flow and Heat Transfer Molecular Dynamic Simulation (DMS) Mass Transfer Operations Nanofluids Non-Newtonian Flow and Heat Transfer Polymer Processing Renewable and Non-renewable Energies Poster Board Dimensions:Authors presenting via poster boards are to be informed that poster boards are 90 cm height and 70 cm width.