To investigate the influence of inlet temperature and velocity of mold cooling water on the heat transfer effects in a continuous casting mold, a three-dimensional fluid flow and heat transfer coupled model was established, containing steel, copper tube and cooling water zone. Using Fluent, this model simulated the flow and heat transfer of liquid steel and cooling water, solidified shell growth, and heat transfer through air gap and mold fluxes. Furthermore, the accuracy of the model was verified by comparing the shell thickness and temperature fields in this study with those from other studies. The model results suggested that the inlet water temperature notably affects the temperatures of the mold cold surface. If the inlet water temperature exceeded 313 K, the highest temperature of the cold surface surpassed the boiling point of water, which could be a reason for billet rhomboidity. An increase of 0.49 m∙s^-1 in water velocity diminished the adverse effects of an increase of 4 K in inlet water temperature. Off-squareness can be prevented in the actual production process by following this method.

为了研究结晶器冷却水的入口温度和速度对连铸结晶器传热效果的影响，建立了包含钢，铜管和冷却水区域的三维流体流动和传热耦合模型。该模型使用Fluent模拟了钢水和冷却水的流动和传热，凝固的壳生长以及通过气隙和结晶器通量的传热。此外，通过比较本研究中的壳厚度和温度场与其他研究中的壳厚度和温度场，验证了模型的准确性。模型结果表明，进水温度显着影响模具冷表面的温度。如果进水温度超过313 K，则冷表面的最高温度超过了水的沸点，这可能是坯料呈菱形的原因。增加0.49 m∙s水速^-1减少了进水温度增加4 K的不利影响。按照这种方法，可以防止在实际生产过程中出现偏角现象。