一、研究方向
气动声学，航空噪声预测与控制，涡声相互作用，流动不稳定性。

二、基金/项目
1. 2024.01-2027.12，国家自然科学基金面上项目，航空压气机涡声相互作用与涡声共振机理研究，主持。

2. 2019.01-2022.12，国家自然科学基金面上项目，航空发动机短舱声衬表面剪切流与声波相互作用研究，主持。

3. 2014.01-2016.12，国家自然科学基金青年项目，流体诱发空腔声共振的涡声相互作用机理及控制方法研究，主持。

5. 2018.01-2022.12，国家自然科学基金重大项目，基于非定常涡升力的轴流压气机气动布局机理，参与（孙晓峰教授主持）。
7. 2017.01-2019.12，国家自然科学基金国际(地区)合作与交流项目，流动环境下Helmholtz共振结构的非线性吸声机制及应用研究，参与（孙晓峰教授主持）。

6. 2016.01-2019.12，国家自然科学基金面上项目，多级压气机失速稳定性模型与先进扩稳方法研究，参与（孙大坤教授主持）。

8. 2012.01-2016.12，国家973项目，大型客机主要气动噪声机理及先进控制方法研究，参与（孙晓峰教授主持）。

9. 2016.01-2019.12，法国 ANR-香港 RGC 国际合作项目，FlowMatAc，参与（Yves Aurégan博士主持）。

10. 2011.12-2015.11，欧盟第七框架玛丽居里项目，ITN project FlowAirS，参与（Yves Aurégan博士主持）。
三、代表性论著
1. X. Dai, Commonality and difference in the eigenfunctions of various types of acoustic trapped modes, Journal of Fluid Mechanics, 980 (2024), A1. 

2. X. Dai, Vortical–acoustic resonance in an acoustic resonator: Strouhal number variation, destabilization and stabilization, Journal of Fluid Mechanics, 919 (2021), A19. 

3. X. Dai, Total reflection of two guided waves for embedded trapped modes, AIAA Journal, 59 (2021), 131–139.

4. X. Dai, Flow–acoustic resonance in a cavity covered by a perforated plate, Journal of Fluid Mechanics, 884 (2020), A4.

5. X. Dai and Y. Aurégan, A cavity-by-cavity description of the aeroacoustic instability over a liner with a grazing flow, Journal of Fluid Mechanics, 852 (2018), 126–145.

6. H.K.H. Fan, R.C.K. Leung, G.C.Y. Lam, Y. Aurégan and X. Dai, Numerical coupling strategy for resolving in-duct elastic panel aeroacoustic/structural interaction, AIAA Journal, 56 (2018), 5033–5040.

7. X. Dai and Y. Aurégan, Flexural instability and sound amplification of a membrane–cavity configuration in shear flow, The Journal of the Acoustical Society of America, 142 (2017), 1934–1942.

8. X. Dai and Y. Aurégan, Acoustic of a perforated liner with grazing flow: Floquet–Bloch periodical approach versus impedance continuous approach, The Journal of the Acoustical Society of America,140 (2016), 2047–2055

9. X. Dai, Vortex convection in the flow-excited Helmholtz resonator, Journal of Sound and Vibration, 370 (2016), 82–93.

10. X. Dai, X. Jing, and X. Sun, Flow-excited acoustic resonance of a Helmholtz resonator: Discrete vortex model compared to experiments, Physics of Fluids, 27 (2015), 057102.

11. X. Dai, X. Jing, and X. Sun, Acoustic-excited vortex shedding and acoustic nonlinearity at a rectangular slit with bias flow, Journal of Sound and Vibration, 333 (2014), 2713–2727.

12. Z. Hong, X. Dai, N. Zhou, X. Jing, and X. Sun, Suppression of Helmholtz resonance using inside acoustic liner, Journal of Sound and Vibration, 333 (2014), 3585–3597.

13. X. Dai, X. Jing, and X. Sun, Discrete vortex model of a Helmholtz resonator subjected to high-intensity sound and grazing flow, The Journal of the Acoustical Society of America, 132 (2012), 2988–2996.

14. X. Dai, X. Jing, and X. Sun, Vortex shedding and its nonlinear acoustic effect occurring at a slit, AIAA Journal, 49 (2011), 2684–2694.

15. 孙晓峰，景晓东，戴习文，气动声学和航空噪声控制，中国科学院编《中国学科发展战略·流体动力学》第12章，2014。