COMSOL数值模拟，实现N2和CO2混合气体在THM热流固三场耦合情况下增强瓦斯（煤层气抽采）
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COMSOL数值模拟，实现N2和CO2混合气体在THM热流固三场耦合情况下增强瓦斯（煤层气抽采） <link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89866311/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/89866311/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">COMSOL<span class="_ _0"> </span><span class="ff2">数值模拟<span class="ff3">：</span>增强瓦斯<span class="ff3">（</span>煤层气抽采<span class="ff3">）</span>在<span class="_ _1"> </span></span>THM<span class="_ _0"> </span><span class="ff2">热流固三场耦合下的性能研究</span></div><div class="t m0 x1 h2 y2 ff2 fs0 fc0 sc0 ls0 ws0">一<span class="ff4">、</span>引言</div><div class="t m0 x1 h2 y3 ff2 fs0 fc0 sc0 ls0 ws0">随着能源需求的不断增长<span class="ff3">，</span>煤层气<span class="ff3">（</span>瓦斯<span class="ff3">）</span>作为一种重要的非常规天然气资源<span class="ff3">，</span>其抽采和利用对于保</div><div class="t m0 x1 h2 y4 ff2 fs0 fc0 sc0 ls0 ws0">障能源供应<span class="ff4">、</span>减少环境污染具有重要意义<span class="ff4">。</span>然而<span class="ff3">，</span>由于煤层气储层的地质条件复杂<span class="ff3">，</span>其抽采过程中涉</div><div class="t m0 x1 h2 y5 ff2 fs0 fc0 sc0 ls0 ws0">及热<span class="ff4">、</span>流<span class="ff4">、</span>固三场耦合作用<span class="ff3">，</span>给抽采工作带来了挑战<span class="ff4">。</span>近年来<span class="ff3">，</span>数值模拟技术成为研究煤层气抽采过</div><div class="t m0 x1 h2 y6 ff2 fs0 fc0 sc0 ls0 ws0">程的重要手段<span class="ff3">，</span>其中<span class="_ _1"> </span><span class="ff1">COMSOL<span class="_ _0"> </span></span>软件因其强大的多物理场仿真能力而受到广泛关注<span class="ff4">。</span>本文将利用</div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">COMSOL<span class="_ _0"> </span><span class="ff2">软件进行数值模拟<span class="ff3">，</span>探讨<span class="_ _1"> </span></span>N2<span class="_ _0"> </span><span class="ff2">和<span class="_ _1"> </span></span>CO2<span class="_ _0"> </span><span class="ff2">混合气体在<span class="_ _1"> </span></span>THM<span class="_ _0"> </span><span class="ff2">热流固三场耦合情况下对瓦斯<span class="ff3">（</span>煤层气</span></div><div class="t m0 x1 h2 y8 ff2 fs0 fc0 sc0 ls0 ws0">抽采<span class="ff3">）</span>的增强效果<span class="ff4">。</span></div><div class="t m0 x1 h2 y9 ff2 fs0 fc0 sc0 ls0 ws0">二<span class="ff4">、<span class="ff1">COMSOL<span class="_ _0"> </span></span></span>软件简介</div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">COMSOL Multiphysics<span class="_ _0"> </span><span class="ff2">是一款基于有限元方法的多物理场仿真软件<span class="ff3">，</span>广泛应用于物理<span class="ff4">、</span>工程<span class="ff4">、</span>材</span></div><div class="t m0 x1 h2 yb ff2 fs0 fc0 sc0 ls0 ws0">料科学等领域<span class="ff4">。</span>该软件支持热传导<span class="ff4">、</span>流体流动<span class="ff4">、</span>结构力学<span class="ff4">、</span>电磁分析等多种物理场的模拟<span class="ff3">，</span>并提供了</div><div class="t m0 x1 h2 yc ff2 fs0 fc0 sc0 ls0 ws0">丰富的材料库和边界条件设置<span class="ff3">，</span>使得用户能够方便地建立复杂系统的仿真模型<span class="ff4">。</span>在煤层气抽采领域<span class="ff3">，</span></div><div class="t m0 x1 h2 yd ff1 fs0 fc0 sc0 ls0 ws0">COMSOL<span class="_ _0"> </span><span class="ff2">软件可用于模拟抽采过程中的压力<span class="ff4">、</span>温度<span class="ff4">、</span>流速等参数变化<span class="ff3">，</span>为优化抽采工艺提供理论支持</span></div><div class="t m0 x1 h3 ye ff4 fs0 fc0 sc0 ls0 ws0">。</div><div class="t m0 x1 h2 yf ff2 fs0 fc0 sc0 ls0 ws0">三<span class="ff4">、<span class="ff1">THM<span class="_ _0"> </span></span></span>热流固三场耦合模型建立</div><div class="t m0 x1 h2 y10 ff2 fs0 fc0 sc0 ls0 ws0">在煤层气抽采过程中<span class="ff3">，</span>热<span class="ff4">、</span>流<span class="ff4">、</span>固三场相互作用<span class="ff3">，</span>构成了一个复杂的系统<span class="ff4">。</span>为了准确模拟这一过程<span class="ff3">，</span></div><div class="t m0 x1 h2 y11 ff2 fs0 fc0 sc0 ls0 ws0">需要建立<span class="_ _1"> </span><span class="ff1">THM<span class="_ _0"> </span></span>热流固三场耦合模型<span class="ff4">。</span>该模型包括热传导方程<span class="ff4">、</span>流体流动方程和固体力学方程<span class="ff3">，</span>通过联</div><div class="t m0 x1 h2 y12 ff2 fs0 fc0 sc0 ls0 ws0">立求解这些方程<span class="ff3">，</span>可以得到抽采过程中压力<span class="ff4">、</span>温度<span class="ff4">、</span>位移等参数的变化规律<span class="ff4">。</span>在<span class="_ _1"> </span><span class="ff1">COMSOL<span class="_ _0"> </span></span>软件中<span class="ff3">，</span>我</div><div class="t m0 x1 h2 y13 ff2 fs0 fc0 sc0 ls0 ws0">们可以通过图形化界面方便地设置模型参数<span class="ff3">，</span>如材料属性<span class="ff4">、</span>边界条件等<span class="ff3">，</span>从而建立符合实际情况的仿</div><div class="t m0 x1 h2 y14 ff2 fs0 fc0 sc0 ls0 ws0">真模型<span class="ff4">。</span></div><div class="t m0 x1 h2 y15 ff2 fs0 fc0 sc0 ls0 ws0">四<span class="ff4">、<span class="ff1">N2<span class="_ _0"> </span></span></span>和<span class="_ _1"> </span><span class="ff1">CO2<span class="_ _0"> </span></span>混合气体增强瓦斯抽采的数值模拟</div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>