In industries where water is used for heating/cooling purpose i.e. water desalination, oil fields operations are carried out, one of the major problem is deposition of metal salts on the surface of the different heat transfer equipments reducing its overall heat transfer efficiency, increased pressure drop and increasing the maintenance cost of the unit and due to shut down of the plant there is a reduction in the production. It also decreases the purity of the desired product. When the various metal salts present in the process fluid combine with each other due to a change in the pH, pressure, concentration and temperature of the operating system, leads to a change in the solubility of the ions present in the system. This leads to the process of nucleation and crystal growth in the system. In the current work, we have examined the process of deposition of gypsum crystals in a supersaturated brine on the Mild steel (MS) metal surface and its inhibition under different hydrodynamic conditions.

It was observed in this work that on increasing the severity of the hydrodynamic conditions the depositions of gypsum (CaSO₄.2H₂O) was increasing up to certain limit and beyond it the deposition of the salts was not observed. Even the particle or crystal structure was greatly influenced due to the changing hydrodynamic conditions.

在将水用于加热/冷却目的（即水脱盐）的工业中，进行油田作业时，主要问题之一是金属盐在不同传热设备的表面沉积，从而降低了其总传热效率，增加了压力下降并增加了设备的维护成本，并且由于工厂关闭而导致产量下降。这也降低了所需产物的纯度。当存在于工艺流体中的各种金属盐由于pH值，操作系统的压力，浓度和温度的变化而彼此结合时，会导致系统中存在的离子的溶解度发生变化。这导致系统中的成核和晶体生长过程。在目前的工作中，

在这项工作中观察到，随着水动力条件的严重性增加，石膏（CaSO ₄ .2H ₂ O）的沉积物增加到一定极限，并且超过该极限，未观察到盐的沉积物。由于不断变化的流体动力学条件，甚至颗粒或晶体结构也受到很大影响。