为了探究合成双射流主动控制技术对池沸腾过程中传热特性及临界热流密度（CHF）的影响机制，本文采用伪势格子Boltzmann方法（lattice Boltzmann method, LBM）对合成双射流控制下的池沸腾过程进行数值模拟研究，以期为发展高效可靠的沸腾换热强化技术提供理论依据。首先介绍了合成双射流的工作原理及其流动特性，随后介绍了所使用的混合热伪势LBM模型。在此基础上，建立了简化的二维池沸腾框架，分别对无控制与受控工况下的沸腾过程进行了模拟，并获取了相应的沸腾曲线。研究结果表明，在合理的射流速度范围内，合成双射流能够显著提升临界热流密度（CHF），并使核态沸腾阶段在更宽的过热度区间内稳定维持。CHF随射流速度的增加呈现先升高后降低的非单调变化，该现象归因于射流引起的压力的时空不均匀分布对气泡形成存在抑制作用。在本研究参数范围内，当射流速度为0.04 lu/ts时，CHF达到最大值，相较于无控工况提升约16.4%。进一步分析表明，射流速度的增大会拓宽核态沸腾的过热度范围，并有效抑制从核态沸腾向膜态沸腾转变过程中出现的热流密度骤降现象，从而缓解沸腾危机。该研究阐明了合成双射流对沸腾过程的作用机制，对发展高效的主动沸腾强化技术具有一定的指导意义。

To investigate the influence mechanism of synthetic dual-jet active control technology on heat transfer characteristics and critical heat flux (CHF) during pool boiling, this study employs the pseudo-potential lattice Boltzmann method (LBM) to conduct numerical simulations of pool boiling under the control of a synthetic dual jet. This research aims to provide theoretical foundations for developing highly efficient and reliable boiling heat transfer enhancement techniques. First, the operating principle and flow characteristics of the synthetic dual jet are introduced, followed by a description of the hybrid thermal pseudopotential LBM model employed. Building upon this, a simplified two-dimensional pool boiling framework was established. Simulations were conducted for both uncontrolled and controlled conditions, yielding corresponding boiling curves. The results demonstrate that within a reasonable jet velocity range, the synthetic dual jet significantly enhances the critical heat flux (CHF) and stabilises nucleate boiling over a broader superheat range. The CHF exhibits a non-monotonic variation with jet velocity, initially increasing before decreasing. This phenomenon is attributed to the suppression of bubble nucleation caused by the spatiotemporal in-homogeneity of pressure induced by the jet. Within the studied parameter range, the CHF reaches its maximum value at a jet velocity of 0.04 lu/ts, representing an approximately 16.4% improvement compared to the uncontrolled condition. Further analysis indicates that increasing jet velocity broadens the superheat range for nucleate boiling and effectively suppresses the abrupt heat flux drop during the transition from nucleate to film boiling, thereby mitigating boiling crises. This study elucidates the mechanism by which synthetic dual jets influence the boiling process, offering valuable guidance for developing highly efficient active boiling enhancement techniques.