Topology optimization method for heat sinks based on surrogate-based multiscale thermal-fluid analysis. - Shun Noguchi; Naoyuki Ishida; Takamitsu Sasaki; Kozo Furuta; Tatsuhiro Ozeki; Ayami Sato; Haruki Motegi; Takahiro Shimada; Shinji Nishiwaki; Kazuhiro Izui (Adv. Eng. Softw., 2026)