RT Web Page SR Electronic(1) ID 11488181 A1 Volker Gnielinski T1 Helically Coiled Tubes of Circular Cross Sections YR 2015 FD 2015-04-13 NO transition region, PB Begell House Inc. PP New York DO 10.1615/hedhme.a.000181 RD 2025-06-01 UL https://hedhme.com/content_map/?article_id=181&link_id=11488 WT HEDH Multimedia - Heat Exchanger Design Handbook, Multimedia Edition WP 2015-04-13