一、前言 为使换热设备更加轻小高效,各国学者着力研究了强化传热技术。近年研制出的不少高效传热表面已在空冷、海水淡化、化工、宇航、船舶、动力工程等方面得到应用。 强化管内对流换热的主要手段是促进管内湍流和扩展管内换热面积。R.L.Webb I. Preface To make the heat exchange equipment more light and efficient, scholars from all over the world have made great efforts to study the heat transfer enhancement technology. In recent years, many highly efficient heat transfer surfaces have been developed for application in air-cooling, seawater desalination, chemical engineering, aerospace, shipbuilding and power engineering. The main means to enhance convective heat transfer in the pipe is to promote the turbulence in the pipe and to expand the heat transfer area in the pipe. R.L.Webb