PMID- 38073874 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231211 IS - 2469-990X (Print) IS - 2469-990X (Electronic) VI - 8 IP - 10 DP - 2023 Oct TI - Origin and evolution of immersed boundary methods in computational fluid dynamics. LID - 100501 [pii] LID - 10.1103/physrevfluids.8.100501 [doi] AB - This article presents the evolutionary history of Immersed Boundary Methods (IBMs), tracing their origins to the very beginning of computational fluid dynamics in the late 1950s all the way to the present day. The article highlights the advancements in this simulation methodology over the last fifty years and explores the interplay between IBMs and body-conformal grid (BCG) methods during this time. Drawing upon the author's combined experience of over forty years in this arena, the perspective offered is personal and subjective. By employing a critical and comparative approach through the chronological lens, we hope that this article empowers the reader to understand both the capabilities and limitations of these methods, and to pursue advancements that fill the key gaps and break new ground. FAU - Mittal, Rajat AU - Mittal R AD - Mechanical Engineering, Johns Hopkins University. FAU - Seo, Jung Hee AU - Seo JH AD - Mechanical Engineering, Johns Hopkins University. LA - eng GR - R21 GM139073/GM/NIGMS NIH HHS/United States PT - Journal Article DEP - 20231006 PL - United States TA - Phys Rev Fluids JT - Physical review fluids JID - 101692708 PMC - PMC10704961 MID - NIHMS1946757 EDAT- 2023/12/11 06:45 MHDA- 2023/12/11 06:46 PMCR- 2023/12/08 CRDT- 2023/12/11 05:36 PHST- 2023/12/11 06:46 [medline] PHST- 2023/12/11 06:45 [pubmed] PHST- 2023/12/11 05:36 [entrez] PHST- 2023/12/08 00:00 [pmc-release] AID - 100501 [pii] AID - 10.1103/physrevfluids.8.100501 [doi] PST - ppublish SO - Phys Rev Fluids. 2023 Oct;8(10):100501. doi: 10.1103/physrevfluids.8.100501. Epub 2023 Oct 6.