The referees underlined the interest of the manuscript, but the revised version still suffers from containing difficult/unclear passages and especially inaccuracies in the use of the English language that make the text unnecessarily hard to read. I suggest several changes below, but please consider having a native English speaker editing the text before the next iteration.

Page 2

p2
l1: space after the comma: ...cal effects ), their p...

l5 revise the English language: ... fine-scale flow fluctuations can possibly trigger important nonlinear physicochemical processes and should then be captured by the simulations.

l15: is Moriwaki and Kanda, 2004) the right reference for COSMO project? This paper refers to fluxes of heat and CO2 in a suburban area of Tokyo.

l21 Please cut the phrase: "Covering all possible cases is obviously impossible but from a fluid mechanics standpoint one can invoke the persistence of flow behaviors whatever the 25 scales allowing for example to observe von Kármán streets in the wake of a centimeter-scale cylinder as well as in the cloud layout behind an island." is too long.

l26 urban cities sounds repetitive, urban areas or cities.


P3
l4 clarify "This approach can suffer from the time step restriction."

l22 future mesoscale application, > future mesoscale applications,

l23 unresolved obstacles such as vegetations > unresolved obstacles such as vegetation.

P4

l1 resolution is ranging from” the > resolution ranges from the

l14 Please do not start a phrase with a symbol (rho). I suggest to introduce them later, after used the first time.

l16 clarify the meaning of "law"

l18 There is no “resp.” for the unresolved part. Please rewrite.

l26 transport is not to be used in plural in this phrase. Use "the transport for each...

l29 same: scalar transport

p5

l6: clarify the meaning of n in the Courant number

l13: meaning of n+1 in the continuity equation

It seems you n define as the time step index in P7

l21: The mathematical operator to inverse > The mathematical operator to invert?

p6

l15 “only the turbulent fric- tion is claimed.” > only the turbulent fric- tion is used.?

l21: terms is neglected? > "terms are neglected" or "term is neglected"

l24: "acting; a" better use and intstead of semicolon.

l27 "LSF LevelSet Function”: in general, please use parenthesis when introducing acronyms

P7

l6 "An intensive study had been done to verify the ability of the LSF spatial derivatives to recover the vector normal to the interface and the local curvature (Auguste et al., Submitted)." Check the English language, and cite only the finally published version of the reference.

P8

l6 “had also been tested” please check the tense use.

Figure 2 caption: please use parenthesis when defining a symbol e.g. ghost (G), … etc.

l11 please revise equations within the phrase. Do not start a phrase with an equation. Leave spaces after points.

l12 What to you mean with: “Such mage-ghost distance”...

l14 Please clarify the meaning of the condition.

P9

l2 Please do not start a phrase with a symbol.

l4 “The physical information at I is directly related to the interface’s one which can itself be dependent on the fluid information” Please revise English language, especially the use of the possessive.

l5 Revise also “(as it’s done in the wall models used in LES)”. Replace “it’s”

Please revise the whole paragraph: it is important because it explains the need of and justifies the new development.

P11

l5 “This yields induce:’ revise

eq 20: use text font in equation mode.

P14
l11 to an unwell posed system > use “not well pose” instead.

P17
l5 “It will raise in the future issues on the validity of the log-law near a singularity (sharp edges or corners).” please revise.

l24 “The RICH Richardson and the RESI Residual Conjugate Gradient “ Please use parenthesis when defining symbols.

27: Please do not start a phrase with an equation or symbol.

Fig 10 please provide a higher quality image.

P22
l2 “had provided” check tense.

l15 Please do not start a phrase with a symbol. E.g. “The stream-wise (resp. span-wise) direction is x …”

P23

l6 Please revise English language: “The literature’s LES give the”

l3 Please revise English language: “and as the literature mentions, it presents”

P 26

l14 “The towers location is” > “The locations of the towers are”


P27

l11 What do you mean by “comforted”?

28

l3 “ (numerical confinement, under investigations). > (numerical confinement, under investigation).

l15 “two times greater” > “two times larger”
l16 Do not use the dot as multiplication symbol in the units.

P 29

l8 “of ongoing works in” > “ of ongoing work in”

P30

l6 “of the GCT Ghost-Cell” etc. Please use parenthesis when defining an acronym.

19-22 long Phrase, consider rearranging in more sub-phrases.

l28 Future works. > Future work.

l31 “high-curvatures bodies“ > “high-curvature bodies”

“non-flat grounds.“ > “non-flat ground.”



l34 “with works dedicated” “with work dedicated”

P31

l3 “compliances with” > “compliance with”

“Such compliances” > “Such compliance”


“Table ??” Please fix missing \ref

References:

Auguste, F., Lac, C., Masson, V., and Cariolle, D.: Large eddy simulations devoted to the dispersion of a pollutant and its health impacts:
The 2001 Toulouse AZF chemical plant explosion, Submitted to Atmos. Environment.

Réa, G., Rochoux, M. C., Auguste, F., Vermorel, O., Lopez Gascon, A., and Cariolle, D.: Model intercomparison in micro-scale meteorology
and pollutant dispersion: large eddy simulations of the MUST experiment, in prep.

Please use only already published articles in the references or omit.

The corrections have been introduced. The main sticking point besides a few minor further clarifications and corrections is the availability of the code according to GMD standards.

l6: “(spring and damper model with large stiffness value).” please further clarify the explanation of the time step restriction.

l12

Many types of discrete forcing exist and a non exhaustive list can be: direct forcing in the fluid region near the interface as in Mohd-Yusof (1997), immersed interface method (Leveque and Li, 1994), Cartesian grid method (Clarke et al., 1986).

Many types of discrete forcing exist, e.g. direct forcing in the fluid region near the interface (Mohd-Yusof , 1997), immersed interface method (Leveque and Li, 1994), Cartesian grid method (Clarke et al., 1986), etc. (the list is not exhaustive).

l21

An argument in favor of GCT is that it does not introduce source terms in the conservation equations so that boundary conditions are imposed at the interface and/or in the solid region, the only corrections to the physical model come from subgrid turbulent parameterizations, and boundary condition is imposed at the interface and/or in the solid region.

This phrase is still cryptic. Cut and clarify.

p4

l30 corresponds

p5
l5 by either?

l25 to inverse > to invert

p6

l22 I do not understand the meaning of the equation in l 22 (for u’_i w’). Is the equation well formatted? What is the meaning of the vertical bars?

p8

l2 Never start a phrase with a symbol (The value .. is ..)

l7 Again, never start a phrase with a symbol.


p14
l 13 matrix to inverse. > matrix to invert.?

p15

“not well pose system” > “Leads to a system that is not well posed.”?



Section 7

Remember that the article cannot be published if the authors do not make their code available. The available options are to submit the code with the manuscript and to provide a doi.The executive editors clearly state: "The paper must be rejected if the authors refuse to comply with requests to make the code accessible within the requirements of GMD."
Add:
- Code (including proposed immersed wall method of section 3.3)
- input for validation with potential and viscous flows (4.1, 4.2)
- input for turbulent flow simulations (5.1, 5.2)
If possible also appendix and supplement.

Thank you for preparing the code associated with the manuscript and uploading it to the webpage https://cerfacs.fr/MNHIBM/Auguste-GMD-2019.
Please notice that making code available in external webpages does no longer comply with GMD standards. Please either upload the code to a repository that provides DOIs (such as Zenodo) or alternatively, provide a tar file with the contents of https://cerfacs.fr/MNHIBM/Auguste-GMD-2019 as supplementary material of this article if the size of the tar ball is reasonable. Thanks in advance.

Thank you for adding the code as a supplement to the paper to comply with GMD guidelines.