Comparison of the experimental and control groups shows that the temperature jump results in a drainage time range of 1 to 15 seconds. In the entire process, the foam volume decreased with increasing drainage rate. In the drainage rate curve, the temperature rose, and the liquid-gas ratio varied from 1:1 to 1:4, causing faster decay. The decay process was videotape recorded. A homemade device manufactured using the Tessari DSS method was used to prepare the foam. The experimental group conditions were as follows: mutation temperatures (10☌, 16☌, 20☌, 23☌, 25☌, and 27☌ to >37☌) and liquid-gas ratios (1:1, 1:2, 1:3, and 1:4). This study investigated the influence of temperature jump and liquid-gas ratio on foam stability to derive the foam-decay law.
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