An morphogenetic model that simulates ice accretion on arbitrarily oriented cables exposed to freezing rain has been developed at the National Research Council Canada (NRC). This predictive numerical model has been validated experimentally for a limited number of conditions in the NRC Climatic Testing Facility. The facility is 6 m wide, 6 m high and 30 m long, and can generate a range of freezing precipitation environments. Inclined stay cable models with a diameter of 0.218 m and a length of 2.4 m were exposed to simulated freezing rain. The final experimental ice accretion shapes were scanned and digitized using a handheld laser scanner. These three-dimensional experimental ice shapes were used to partially validate the NRC morphogenetic model. The successfully validated model was used to examine ice accretion on stay cable geometry in an environment representative of freezing rain conditions in Eastern Canada. Prediction of wet snow accretion on already ice covered stay cables has also been undertaken.

加拿大国家研究委员会（NRC）已开发出一种形态形成模型，可以模拟在暴露于冻雨的任意取向的电缆上积冰。该预测性数值模型已在NRC气候测试设施中针对有限数量的条件进行了实验验证。该设施的宽度为6 m，高度为6 m，长度为30 m，并且可以产生一系列的冻结降水环境。将直径为0.218 m，长度为2.4 m的斜拉索模型暴露在模拟的冻雨中。使用手持式激光扫描仪扫描最终的实验积冰形状并数字化。这些三维实验冰形状用于部分验证NRC形态发生模型。成功验证的模型用于在代表加拿大东部冻雨条件的环境中检查斜拉索几何形状上的积冰情况。还已经对已经被冰覆盖的斜拉索上的积雪进行了预测。